Display screen or portion thereof with a transitional graphical user interface of a financial data viewer application



A portion of the disclosure of this patent document contains material to which a claim for copyright is made. The copyright owner has no objection to the reproduction of the patent document or the patent disclosure, as it appears in the U.S. Patent Office records, but reserves all other copyright rights whatsoever.

FIG. 1 is a front view of a first image in a sequence for a display screen or portion thereof with a transitional graphical user interface of a financial data viewer application; and,

FIG. 2 is a front view of a second image thereof.

The subject matter in this patent includes a process or period in which an image changes into another image. This process or period forms no part of the claimed design. The broken lines showing a display screen or portion thereof form no part of the claimed design. 

CLAIM We claim the ornamental design for a display screen or portion thereof with a transitional graphical user interface of a financial data viewer application, as shown and described. 